<?php
/**
 * Copyright © 2013-2017 Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

\Magento\TestFramework\Helper\Bootstrap::getInstance()->loadArea(
    \Magento\Backend\App\Area\FrontNameResolver::AREA_CODE
);

/** @var $product \Magento\Catalog\Model\Product */
$product = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(Magento\Catalog\Model\Product::class);
$product->setTypeId('virtual')
    ->setId(1)
    ->setAttributeSetId(4)
    ->setName('Simple Product')
    ->setSku('simple')
    ->setPrice(10)
    ->setStoreId(1)
    ->setStockData(['use_config_manage_stock' => 1, 'qty' => 100, 'is_qty_decimal' => 0, 'is_in_stock' => 100])
    ->setVisibility(\Magento\Catalog\Model\Product\Visibility::VISIBILITY_BOTH)
    ->setStatus(\Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED)
    ->save();
$product->load(1);

/** @var $quote \Magento\Quote\Model\Quote */
$quote = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(\Magento\Quote\Model\Quote::class);
$storeId = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->get(
    \Magento\Store\Model\StoreManagerInterface::class
)->getStore()->getId();
$quoteItem = $quote->setStoreId($storeId)
    ->setReservedOrderId('test01')
    ->addProduct($product, 10);

/** @var $quoteItem \Magento\Quote\Model\Quote\Item */
$quoteItem->setQty(1);
$quote->getPayment()->setMethod('checkmo');
$quote->getBillingAddress();
$quote->getShippingAddress()->setCollectShippingRates(true);
$quote->collectTotals();
$quote->save();
$quoteItem->setQuote($quote);
$quoteItem->save();
